Measures the CO2 concentration in rooms and emits an audible and visual alarm (fresh air indicator) when a value of 1,400 ppm is exceeded. Mute button on the side of the housing. Fits directly on standard EU surface-mounted boxes. Learn More

Measures the CO2 concentration in rooms and emits an audible and visual alarm (fresh air indicator) when a value of 1,400 ppm is exceeded. Red mute button on the front of the housing. Fits directly on standard US surface-mounted boxes. Learn More